[INFO] fetching crate ff-derive-num 0.2.0...
[INFO] testing ff-derive-num-0.2.0 against try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1
[INFO] extracting crate ff-derive-num 0.2.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate ff-derive-num 0.2.0
[INFO] finished tweaking crates.io crate ff-derive-num 0.2.0
[INFO] tweaked toml for crates.io crate ff-derive-num 0.2.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ff-derive-num 0.2.0 on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.114)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 05c288cd81ed98df8be1ae2da45954243b058756de40c451b913a413522d0260
[INFO] running `Command { std: "docker" "start" "-a" "05c288cd81ed98df8be1ae2da45954243b058756de40c451b913a413522d0260", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
[INFO] [stderr]    Compiling quote v1.0.43
[INFO] [stderr]    Compiling ff-derive-num v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.04s
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[INFO] running `Command { std: "docker" "rm" "-f" "05c288cd81ed98df8be1ae2da45954243b058756de40c451b913a413522d0260", kill_on_drop: false }`
[INFO] [stdout] 05c288cd81ed98df8be1ae2da45954243b058756de40c451b913a413522d0260
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "--no-run" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
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[INFO] [stderr]    Compiling ff-derive-num v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "46a6a10e474bc9d1b64156408605af161ed0e44d21915d0685621767890587ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46a6a10e474bc9d1b64156408605af161ed0e44d21915d0685621767890587ea", kill_on_drop: false }`
[INFO] [stdout] 46a6a10e474bc9d1b64156408605af161ed0e44d21915d0685621767890587ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 747d20d2110777495774cb5783d513278a63e72228adcd88bcedf01a6b3f3829
[INFO] running `Command { std: "docker" "start" "-a" "747d20d2110777495774cb5783d513278a63e72228adcd88bcedf01a6b3f3829", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/ff-derive-num/3b2c141f0a3b30ae/deps/ff_derive_num-3b2c141f0a3b30ae)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ff_derive_num
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 22) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 22) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `ff`
[INFO] [stdout]   --> src/lib.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | use ff::PrimeField;         // ff should be used with the "derive" feature!
[INFO] [stdout]    |     ^^ use of unresolved module or unlinked crate `ff`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `ff`, use `cargo add ff` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `ff`
[INFO] [stdout]   --> src/lib.rs:27:21
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[derive(PrimeField,Num)]
[INFO] [stdout]    |                     ^^^ could not find `ff` in the list of imported crates
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `Num` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `PrimeFieldModulus` in this scope
[INFO] [stdout]   --> src/lib.rs:28:3
[INFO] [stdout]    |
[INFO] [stdout] 28 | #[PrimeFieldModulus = "70386805592835581672624750593"]
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `PrimeFieldGenerator` in this scope
[INFO] [stdout]   --> src/lib.rs:29:3
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[PrimeFieldGenerator = "17"]
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `PrimeFieldReprEndianness` in this scope
[INFO] [stdout]   --> src/lib.rs:30:3
[INFO] [stdout]    |
[INFO] [stdout] 30 | #[PrimeFieldReprEndianness = "little"]
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `ff` in the list of imported crates
[INFO] [stdout]   --> src/lib.rs:27:21
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[derive(PrimeField,Num)]
[INFO] [stdout]    |                     ^^^ could not find `ff` in the list of imported crates
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `Num` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: can't compare `Ft` with `Ft`
[INFO] [stdout]   --> src/lib.rs:27:21
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[derive(PrimeField,Num)]
[INFO] [stdout]    |                     ^^^ no implementation for `Ft == Ft`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `PartialEq` is not implemented for `Ft`
[INFO] [stdout] note: required by a bound in `Num`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/num-traits-0.2.19/src/lib.rs:67:16
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub trait Num: PartialEq + Zero + One + NumOps {
[INFO] [stdout]    |                ^^^^^^^^^ required by this bound in `Num`
[INFO] [stdout]    = note: this error originates in the derive macro `Num` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider annotating `Ft` with `#[derive(PartialEq)]`
[INFO] [stdout]    |
[INFO] [stdout] 31 + #[derive(PartialEq)]
[INFO] [stdout] 32 | pub struct Ft([u64; 2]);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: cannot subtract `Ft` from `Ft`
[INFO] [stdout]   --> src/lib.rs:27:21
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[derive(PrimeField,Num)]
[INFO] [stdout]    |                     ^^^ no implementation for `Ft - Ft`
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `Sub` is not implemented for `Ft`
[INFO] [stdout]   --> src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Ft([u64; 2]);
[INFO] [stdout]    | ^^^^^^^^^^^^^
[INFO] [stdout]    = note: required for `Ft` to implement `NumOps`
[INFO] [stdout] note: required by a bound in `Num`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/num-traits-0.2.19/src/lib.rs:67:41
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub trait Num: PartialEq + Zero + One + NumOps {
[INFO] [stdout]    |                                         ^^^^^^ required by this bound in `Num`
[INFO] [stdout]    = note: this error originates in the derive macro `Num` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: cannot multiply `Ft` by `Ft`
[INFO] [stdout]   --> src/lib.rs:27:21
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[derive(PrimeField,Num)]
[INFO] [stdout]    |                     ^^^ no implementation for `Ft * Ft`
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `Mul` is not implemented for `Ft`
[INFO] [stdout]   --> src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Ft([u64; 2]);
[INFO] [stdout]    | ^^^^^^^^^^^^^
[INFO] [stdout]    = note: required for `Ft` to implement `NumOps`
[INFO] [stdout] note: required by a bound in `Num`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/num-traits-0.2.19/src/lib.rs:67:41
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub trait Num: PartialEq + Zero + One + NumOps {
[INFO] [stdout]    |                                         ^^^^^^ required by this bound in `Num`
[INFO] [stdout]    = note: this error originates in the derive macro `Num` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: cannot add `Ft` to `Ft`
[INFO] [stdout]   --> src/lib.rs:27:21
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[derive(PrimeField,Num)]
[INFO] [stdout]    |                     ^^^ no implementation for `Ft + Ft`
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `Add` is not implemented for `Ft`
[INFO] [stdout]   --> src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Ft([u64; 2]);
[INFO] [stdout]    | ^^^^^^^^^^^^^
[INFO] [stdout]    = note: required for `Ft` to implement `NumOps`
[INFO] [stdout] note: required by a bound in `Num`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/num-traits-0.2.19/src/lib.rs:67:41
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub trait Num: PartialEq + Zero + One + NumOps {
[INFO] [stdout]    |                                         ^^^^^^ required by this bound in `Num`
[INFO] [stdout]    = note: this error originates in the derive macro `Num` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: cannot multiply `Ft` by `Ft`
[INFO] [stdout]   --> src/lib.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Ft([u64; 2]);
[INFO] [stdout]    |            ^^ no implementation for `Ft * Ft`
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `Mul` is not implemented for `Ft`
[INFO] [stdout]   --> src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Ft([u64; 2]);
[INFO] [stdout]    | ^^^^^^^^^^^^^
[INFO] [stdout]    = note: required for `Ft` to implement `NumOps`
[INFO] [stdout] note: required by a bound in `Num`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/num-traits-0.2.19/src/lib.rs:67:41
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub trait Num: PartialEq + Zero + One + NumOps {
[INFO] [stdout]    |                                         ^^^^^^ required by this bound in `Num`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: cannot subtract `Ft` from `Ft`
[INFO] [stdout]   --> src/lib.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Ft([u64; 2]);
[INFO] [stdout]    |            ^^ no implementation for `Ft - Ft`
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `Sub` is not implemented for `Ft`
[INFO] [stdout]   --> src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Ft([u64; 2]);
[INFO] [stdout]    | ^^^^^^^^^^^^^
[INFO] [stdout]    = note: required for `Ft` to implement `NumOps`
[INFO] [stdout] note: required by a bound in `Num`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/num-traits-0.2.19/src/lib.rs:67:41
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub trait Num: PartialEq + Zero + One + NumOps {
[INFO] [stdout]    |                                         ^^^^^^ required by this bound in `Num`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: cannot add `Ft` to `Ft`
[INFO] [stdout]   --> src/lib.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Ft([u64; 2]);
[INFO] [stdout]    |            ^^ no implementation for `Ft + Ft`
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `Add` is not implemented for `Ft`
[INFO] [stdout]   --> src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Ft([u64; 2]);
[INFO] [stdout]    | ^^^^^^^^^^^^^
[INFO] [stdout]    = note: required for `Ft` to implement `NumOps`
[INFO] [stdout] note: required by a bound in `Num`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/num-traits-0.2.19/src/lib.rs:67:41
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub trait Num: PartialEq + Zero + One + NumOps {
[INFO] [stdout]    |                                         ^^^^^^ required by this bound in `Num`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: can't compare `Ft` with `Ft`
[INFO] [stdout]   --> src/lib.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Ft([u64; 2]);
[INFO] [stdout]    |            ^^ no implementation for `Ft == Ft`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `PartialEq` is not implemented for `Ft`
[INFO] [stdout] note: required by a bound in `Num`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/num-traits-0.2.19/src/lib.rs:67:16
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub trait Num: PartialEq + Zero + One + NumOps {
[INFO] [stdout]    |                ^^^^^^^^^ required by this bound in `Num`
[INFO] [stdout] help: consider annotating `Ft` with `#[derive(PartialEq)]`
[INFO] [stdout]    |
[INFO] [stdout] 31 + #[derive(PartialEq)]
[INFO] [stdout] 32 | pub struct Ft([u64; 2]);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: cannot add `Ft` to `Ft`
[INFO] [stdout]   --> src/lib.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Ft([u64; 2]);
[INFO] [stdout]    |            ^^ no implementation for `Ft + Ft`
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `Add` is not implemented for `Ft`
[INFO] [stdout]   --> src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Ft([u64; 2]);
[INFO] [stdout]    | ^^^^^^^^^^^^^
[INFO] [stdout] note: required by a bound in `num_traits::Zero`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/num-traits-0.2.19/src/identities.rs:12:25
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub trait Zero: Sized + Add<Self, Output = Self> {
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Zero`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: cannot multiply `Ft` by `Ft`
[INFO] [stdout]    --> src/lib.rs:31:12
[INFO] [stdout]     |
[INFO] [stdout]  31 | pub struct Ft([u64; 2]);
[INFO] [stdout]     |            ^^ no implementation for `Ft * Ft`
[INFO] [stdout]     |
[INFO] [stdout] help: the trait `Mul` is not implemented for `Ft`
[INFO] [stdout]    --> src/lib.rs:31:1
[INFO] [stdout]     |
[INFO] [stdout]  31 | pub struct Ft([u64; 2]);
[INFO] [stdout]     | ^^^^^^^^^^^^^
[INFO] [stdout] note: required by a bound in `One`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/num-traits-0.2.19/src/identities.rs:106:24
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub trait One: Sized + Mul<Self, Output = Self> {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `One`
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:27:21
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[derive(PrimeField,Num)]
[INFO] [stdout]    |                     ^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     expected `Ft`, found `u64`
[INFO] [stdout]    |                     arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]   --> /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/convert/mod.rs:592:7
[INFO] [stdout]    = note: this error originates in the derive macro `Num` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0368]: binary assignment operation `*=` cannot be applied to type `Ft`
[INFO] [stdout]   --> src/lib.rs:27:21
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[derive(PrimeField,Num)]
[INFO] [stdout]    |                     ^^^ cannot use `*=` on type `Ft`
[INFO] [stdout]    |
[INFO] [stdout] note: an implementation of `MulAssign<&Ft>` might be missing for `Ft`
[INFO] [stdout]   --> src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Ft([u64; 2]);
[INFO] [stdout]    | ^^^^^^^^^^^^^ must implement `MulAssign<&Ft>`
[INFO] [stdout] note: the trait `MulAssign` must be implemented
[INFO] [stdout]   --> /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/arith.rs:902:0
[INFO] [stdout]    = note: this error originates in the derive macro `Num` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0368]: binary assignment operation `+=` cannot be applied to type `Ft`
[INFO] [stdout]   --> src/lib.rs:27:21
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[derive(PrimeField,Num)]
[INFO] [stdout]    |                     ^^^ cannot use `+=` on type `Ft`
[INFO] [stdout]    |
[INFO] [stdout] note: an implementation of `AddAssign<&Ft>` might be missing for `Ft`
[INFO] [stdout]   --> src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Ft([u64; 2]);
[INFO] [stdout]    | ^^^^^^^^^^^^^ must implement `AddAssign<&Ft>`
[INFO] [stdout] note: the trait `AddAssign` must be implemented
[INFO] [stdout]   --> /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/arith.rs:769:0
[INFO] [stdout]    = note: this error originates in the derive macro `Num` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 19 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308, E0368, E0432, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 22)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.26s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "747d20d2110777495774cb5783d513278a63e72228adcd88bcedf01a6b3f3829", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "747d20d2110777495774cb5783d513278a63e72228adcd88bcedf01a6b3f3829", kill_on_drop: false }`
[INFO] [stdout] 747d20d2110777495774cb5783d513278a63e72228adcd88bcedf01a6b3f3829
